Improvement in machines for cleaning cast pipes



Kentucky, have invented a new and useful Imand I do hereby declare that the following is on the line x Fig. 1.

' The said pairs of rollers are placed at a suitroller D, atv some distance below the rollers,

v UNITED- STATES PATENT Cierres.'

HENRY DAVIES, OF NEWPORT, KENTUCKY.

llMPRo-VEMN-r INMACHINES FOR CLEANING cAsT PIPEs.

Specicationforming part of Letters Patent No. 103,305, dated May 24, 1870.

To all whom t may concern:

Be it known that I, HENRY Dnvrns, of N ew-v port, in the county of Campbell and State of provement in Machines for Cleaning Pipes;

a full, clear, and exact description thereof, which will enable others skilled inthe art to make and use the same, reference being had to the accompanying drawings, forming part of `this specification.

This invention relates to improvements in machinery for cleaning t-he core-sand out of the pipe after casting. i y

It consists in a combination, on an inclined frame, of a set of. pipe holding` and rotating rollers and a sliding, boring, or scraping'tool, and suitable operating gears and apparatus for revolving the pipe and drawing the boring or scraping tool into it for scraping off the same, which is discharged by the revolving of the pipe, all as hereinafter more fully specified.

Figure I is a plan View of myimproved ma chine. Fig. 2 is a longitudinal sectional elevation, and Fig. 3 is atransverse section taken A is a long inclined frame, of wood or metal, with lateral frames or railsB C, for rolling the pipe on and off the place for cleaning.

D represents two pairs of rollers attached to shafts E, arranged side-by side within the frame A, parallel vwith it'and opposite the intersection of the rails B C with thesaid frame. The

shafts of these rollers are set in motion by a pinion, F, on a driving-shaft, G, and gearing withv suitable cog-wheels, H, on the said shafts.

able distance from each other to support the pipes to be cleaned and to cause them-to revolve by their frictional contact with the suru face ofthe pipes.

I is a roller placed at right angles to the for action upon the end of the pipes to prevent them from moving lengthwise down the incline. j Y

K is the boring or scraping tool,which may be of any sort or kind suited for the purpose. It isattached to the end of a rod, L, connected M, arranged to work in ways Nup and. down onthe frame A. At the upper ends of the ways N is a curved bar, O, with a guidingnotch for the rod L. This slideNandtheboring-tool are moved upward to cause the tool to enter the pipe to be cleaned whenlying onthe rroller D, as shown in dotted lines at X, and being revolved by them by the cord P and drum Q, the latter being'turned by Worm-gears R S and one of the shafts E.

T is a clamping-bar pointed at one side of the frame and arranged to swing down on the pipe to confine it in place, and has a frictionroller, U, for bearing on it. The free end is held in position by a swinging clamp, V, and set-screw WV. The said clamp swings up over the end of the bar after it has been dropped on the pipe, and the set-screw W screws down upon it. The shaft of the drumQisjournaled at one end in a hand'lever, Z, by which it is thrown into or out of gear when required. It is thrown out as soon as theboringtool reaches the upper end. The tool andits slide arethen forccd back by hand or otherwise, to allow the removal of the pipe by rolling it off on one of the tracks B or C.

By this improved machine I am enabled to clean the pipe very rapidly and with but little labor, as Will be readily seen, in a way to avoid breaking them, as is now often done by hammering them to detach the sand.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, in a pipe-cleaning machine, of a set of pipe holding and revolving HENRY DAVIES.

, or scraping tool,

Vitnesses C. P.' BUCHANAN,

at the other end, so as notto revolve, to a slide,

GEO. YoUTsEY. 

